Patent holdings for IPC class E04G 23/02

Total number of patents in this class: 905

10-year publication summary

83
75
94
87
94
72
78
81
62
55
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
CFS Concrete Forming Systems Inc.
91
27
Keiwa Inc.
188
20
Sika Technology AG
2911
18
Soletanche Freyssinet
483
13
3m Innovative Properties Company
17719
10
Nippon Telegraph and Telephone Corporation
16319
10
Denka Company Limited
2655
10
Reddo Floor Solutions AB
22
10
Shanghai Jianwei Cultural Heritage Conservation Tech. Co., Ltd
22
9
Intel Corporation
46471
8
Valinge Innovation AB
1017
7
Showa Denko K.K.
2174
6
CinTec International Limited
15
6
DAP Products Inc.
21
6
Garland Industries, Inc.
98
6
Osmose Utilities Services, Inc.
138
6
re-Fer AG
14
6
Nippon Steel Chemical & Material Co., Ltd.
677
6
Carboshield, Inc.
11
6
Dai Nippon Printing Co., Ltd.
4145
5
Other owners 710